Results 101 to 110 of about 1,634,208 (299)

The asymptotic number of rooted maps on a surface

open access: yesJournal of Combinatorial Theory, Series A, 1986
Let S be a connected compact 2-manifold without boundary. For an orientable S the type \(g=1-\chi /2\) agrees with the genus (\(\chi\) denotes the Euler characteristic of S). Let \(T_ g(n)\) \((P_ g(n))\) be the numbr of n-edged rooted maps on a (non-)orientable surface of type g; \(TS_ g(n)\), \((PS_ g(n))\) be the number of those not having any ...
Edward A. Bender, E. Rodney Canfield
openaire   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

A bijection for rooted maps on general surfaces

open access: yesJournal of Combinatorial Theory, Series A, 2017
We extend the Marcus-Schaeffer bijection between orientable rooted bipartite quadrangulations (equivalently: rooted maps) and orientable labeled one-face maps to the case of all surfaces, that is orientable and non-orientable as well. This general construction requires new ideas and is more delicate than the special orientable case, but it carries the ...
Guillaume Chapuy, Maciej Dolega
openaire   +3 more sources

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

Current Status of root Biomodification Agents in Periodontal Regeneration

open access: yesIndian Journal of Dental Sciences
Periodontitis can be defined as a multifactorial inflammatory disease of bacterial origin causing destruction of periodontal tissues. Achieving effective regeneration in periodontal therapy still remains a foremost goal.
Niket Bhatt   +4 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Root surface area measurement of permanent dentition in Indian population – CBCT analysis

open access: yesInformatics in Medicine Unlocked, 2017
The area of the root surface of human teeth has been investigated extensively in the dental literature. All previous attempts mainly rely on the use of physical methods to calculate surface area on extracted teeth or use virtual 3D Models for the same ...
Kanika Lakhani   +2 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT

open access: yesJixie qiangdu, 2022
The self-made thread root rolling strengthening device based on common lathe CA6140 was used to perform rolling strengthening process on 45 steel thread samples.
WANG Dong   +4 more
doaj  

The difference of saline and sterile water for tetracycline hydrochloride solvents in cementum demineralization

open access: yesDental Journal, 2016
Background: The root cementum demineralization is an important step in regenerative periodontal therapy to smear layer removal on the root surface. Smear layer on the root surface becomes a barrier of the new attachment between periodontal tissues with ...
Shinta Ferronika   +2 more
doaj   +1 more source

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